A - Parkway Walk

https://codeforces.com/contest/1697/submission/160286588

Codeforces/1697/A/A.cpp

@@ -0,0 +1,37 @@
+#include <iostream>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+const int N = 105;
+
+int t, n, m;
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> t;
+
+    while (t--) {
+        cin >> n >> m;
+
+        int ans = 0;
+
+        for (int i = 1, x; i <= n; i++) {
+            cin >> x;
+
+            m -= x;
+
+            if (m < 0) {
+                ans += -m;
+                m = 0;
+            }
+        }
+
+        cout << ans << endl;
+    }
+
+    return 0;
+}